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New LG 5K UltraFine Display models work properly near wireless access points including routers
Earlier this year we reported issues with using the LG UltraFine 5K Display with new MacBook Pros near wireless access points including Apple wireless routers. LG acknowledged issues caused by poor shielding, inventory was pulled from Apple Stores, and revised hardware with proper shielding is now shipping and should be in Apple Stores soon. This week we got our hands on one of the new models with shielding improvements to put to the test and see if the issues have really been resolved… Problems with the previous hardware were pronounced and consistently reproducible in our testing in January. Using the LG UltraFine 5K Display within a few meters of a wireless access point including Apple AirPort routers and Sonos wireless speakers made the monitor unusable and even caused macOS to crash in some instances. High bandwidth tasks like loading multiple Safari tabs and video calling also created issues even when wireless access points were further away. The problem was caused by improper shielding that should have prevented wireless interference with the monitor, and the solution for affected displays required moving wireless routers and speakers to other rooms. That's not always possible in every office environment, however, which made the display impossible to recommend.
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